Applying conditional styling🔗
You can style your rendered diagram-SVGs individually with functions
such that explicit highlighting of objects can be achieved. With this
you can control styling of ElkChildTypes
during the serialization while rendering.
Since SVGs can be styled via CSS your options are gigantic. An example
is given by the styling of Actor Functions (i.e. Functions which their
parent Subsystem has the attribute is_actor=True) like it is done in
Capella. These appear to be blue.
import capellambse
model = capellambse.MelodyModel("tests/data/ContextDiagram.aird")
diag = model.by_uuid("957c5799-1d4a-4ac0-b5de-33a65bf1519c").context_diagram
diag.render("svgdiagram").save(pretty=True)
This is currently the default style which overrides the default from py-capellambse.
No symbol rendering🔗
There are some ModelObjects that are displayed as symbols in a diagram (e.g.
Capabilities or Missions). The .display_symbols_as_boxes attribute gives you
the control to render these as boxes such that the symbol is displayed as an
icon beside the box-label. Per default this attribute is set to True.
Box-only style for Context diagram of Middle OperationalCapability [OCB]
from capellambse import aird
diag = model.by_uuid("da08ddb6-92ba-4c3b-956a-017424dbfe85").context_diagram
diag.display_symbols_as_boxes = True # per default
diag.render("svgdiagram").save(pretty=True)
Box-only style for Context diagram of Capability Capability [MCB]
from capellambse import aird
diag = model.by_uuid("9390b7d5-598a-42db-bef8-23677e45ba06").context_diagram
diag.display_symbols_as_boxes = True # per default
diag.render("svgdiagram").save(pretty=True)
No edge labels🔗
The no_edgelabels render parameter prevents edge labels from being displayed.
No-edgelabels style for Context diagram of Capability Capability [MCB]
import capellambse
model = capellambse.MelodyModel("tests/data/ContextDiagram.aird")
diag = model.by_uuid("957c5799-1d4a-4ac0-b5de-33a65bf1519c").context_diagram
diag.render("svgdiagram", no_edgelabels=True).save(pretty=True)
Examples for custom styling🔗
You can switch to py-capellambse default styling by overriding the
render_styles Attribute with an empty dictionary:
No styling
from capellambse import aird
from capellambse_context_diagrams import styling
diag = model.by_uuid("957c5799-1d4a-4ac0-b5de-33a65bf1519c").context_diagram
diag.render_styles = {}
diag.render("svgdiagram").save(pretty=True)
You probably noticed that the SystemAnalysis diagrams on the index page have custom styling. There we applied the SYSTEM_EX_RELABEL filter and SYSTEM_CAP_STYLING style. These styles are applied per default.
Style your diagram elements (ElkChildType) arbitrarily:
Red junction point
from capellambse import aird
from capellambse_context_diagrams import styling
diag = model.by_uuid("a5642060-c9cc-4d49-af09-defaa3024bae").context_diagram
diag.render_styles = dict(
styling.BLUE_ACTOR_FNCS,
junction=lambda obj, serializer: {"stroke": aird.RGB(220, 20, 60)},
)
diag.render("svgdiagram").save(pretty=True)
